Composer Jake Kaufman, aka virt, has made both albums available through his Bandcamp page on a name your own price basis. The page for the Shovel Knight OST also contains a link to freely download a version of the soundtrack that can be played on NES/Famicom software.

The OST was composed by Kaufman along with Manami Matsumae, the chiptune virtuoso behind the Mega Man soundtrack and many others. Kaufman, on the arrangement album page, expresses how honored he was to work with Matsumae, and that she even arranged one of his own tracks:

One of the high points in my life is knowing that Manami Matsumae, one of my biggest inspirations and the composer of the ORIGINAL Mega Man soundtrack, actually arranged a song I wrote for a game. This is completely surreal, and hard to fathom.

Kaufman also says he's perfectly happy to have you fiddle around with his music, too, and just about anything is open game:

Make your own arrangements! Make music videos! Write lyrics! Do crazy stuff! Be brilliant! Be stupid! Share your creativity and love of game music with the world. It's why I make the source files available, and why this album is free.

The soundtrack to Shovel Knight is only one great part of an overall great game, as we proclaim in our reviews for the Wii U and 3DS versions. What parts of everyday life are you planning to infuse with awe and power through these tracks?

As a child, Tim once spent an entire month staring longingly at a copy of Kirby's Dream Land his parents had kept atop the refrigerator until he could play it on an upcoming road trip. That month would change his life forever. TLatshaw